You're right.. But I don't think man will ever make and use what you say "Flying Horses"..
I agree with you that something must be done to avoid so many Cars in the Roads...
Maybe the use of Electricity...
It amazes me how almost all People talk about the "Planets Survival"!
I hope that more and more people will start to understand that our planet needs our help and effort in order for it to continue being allright...